Tamperproof closure for bottles and the like

Details Tamperproof closure for bottles and the like Tamperproof closure for bottles and the like

1992-10-02

1993-10-12

Shoap, Allan N.

Bottles and jars

Closures

Frangible member or portion

215253, B65D 4134

Patent

active

052517691

ABSTRACT:
A tamperproof closure, effective to make any opening attempt irreversibly evident, comprises a cylindrical body adapted for association with a bottle, a cap, a thread connection between the cap and the cylindrical body, a tamperproofing band made unitary with the cap through a weakening line, a plurality of teeth distributed around the cylindrical body and a corresponding plurality of cams distributed around the band, each cam being located before a respective tooth in the unscrewing direction of the cap and interfering with the tooth during the unscrewina operation so as to be displaced outwardly and distort the band locally into a projection.

REFERENCES:
patent: 3850328 (1974-11-01), Guala
patent: 4458817 (1984-07-01), Guala
patent: 4572387 (1986-02-01), Luker et al.

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